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Guaranteed Fitment
Always the correct part
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In-House Experts
We know our products
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Technical Support
We help with any installation questions
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Wordwide Delivery
Fast shipping times from USA warehouses
Strength and reliability is the primary factor, something that a diaphragm simply cannot match in a high-boost BOV environment. Diaphragms have their place (we use them in our wastegates), as they offer low friction and good sealing capability. However, a rolling diaphragm is only designed to receive a net pressure on one side, which essentially "inflates" it against the walls of the chamber in which it resides, exactly how it is used in a wastegate
Installation Instructions